Then there is yellowstone. the mississippi river reversed course and it has done so several times. If that volcano errupts, it will not be good for several states so I understand. Hope it never does. Though they say it has been more active as of late.

This planet has gone through lots of changes over the past 6000 years or more. This will not be any different. Just rather we can all survive it. As we have a great many more people, we are depended on grocery stores, electric grid, where as back years ago people didn’t have all those luxtries.